{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8498839","patent":{"patent_number":"US-8498839","title":"Position determination system, transmission device and reception device, and position determination method","assignee":null,"inventors":[],"filing_date":"2008-12-19T00:00:00.000Z","publication_date":"2013-07-30T00:00:00.000Z","cpc_codes":["G06F","G01S","G01S","G06F","G01S"],"num_claims":15,"abstract":"A moving body includes a transmission device which simultaneously sends out a trigger signal and an ultrasonic signal modulated by pseudo random sequence data, and a reception device which detects a position of the moving body. The reception device includes two ultrasonic reception units The reception device includes a unit which calculates a correlation value between a waveform of the ultrasonic signal and a modulation reference waveform of a pseudo random sequence data assigned to the moving body The reception device includes a unit which calculates a time of propagation of the ultrasonic to arrive at the two ultrasonic reception units from a time point of reception of the trigger signal and a time point of detection of a first peak of the correlation value, and a unit which calculates a position of the moving body based on the ultrasonic propagation time and an interval length between the ultrasonic reception units."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Position determination system, transmission device and reception device, and position determination method","description":"A moving body includes a transmission device which simultaneously sends out a trigger signal and an ultrasonic signal modulated by pseudo random sequence data, and a reception device which detects a p","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8498839","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-8498839","citation_suggestion":"Patentable. \"Position determination system, transmission device and reception device, and position determination method\" (US-8498839). https://patentable.app/patents/US-8498839","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8498839","json":"https://patentable.app/api/llm-context/US-8498839","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T18:24:57.558Z"}